Cow-milking machine.



A. 6r R. L. HINMAN. 00W MILKING MACHINE.

n APPLIOATIOI FILED JAI. 13, 1908. Patented 3 SHEETS-SHEET 1.

A. V. @5 R. L. Hmmm.

00W MILKING MACHINE. ANIMATION Hmm 35.3.13,1908.

Patented Dec. 22,1908. 3 SHEETS-SHEET 2.

A. V. & R. L. HINMAN.

00W MILKING MACHINE.

APPLIUATIDN FILED JAN. 1a, 190e.

Patented Deo. 22, 190s.

3 SHEETS-SHEET 3.

gvweutoz FLE;

@01W mozo v knnen? To-ll who/m it may concern:

. by declare the following to be a full, clear,`

UNITED srArEs PATENCE.- OFFICE.

ARTHUR' v. IHINMAN AND'RALPH iL. H INMAN, orMuNNsviLLE, New YORK.

cow-Minime momma.

' Be it known that we,.AirrHUR V. HINMAN i and RALPH L. Hin MAN, citizens of the United States, residingfat/lilunnsville, in the county 'of Madison, State of New York, have invented certain new and useful Improvements in'Cow-Milking Machines.; and we dohereand `exact' description of the invention, such as will enable others skilled in thel art to `which it appe'rtains to make andfuse the saine.

The present invention has reference to improvements in cow-milking apparatuses, and 1t aims, generally, to provide an exceedingly simple, readily operated, and highly efficient apparatus of that class for milking a number 'of cows simultaneously.

More especially, the invention resides in the provision of a cow-milking apparatus in .which the hose leading from the suction pump is connected to a cylinder whose lower end is closed and opened by a exible valve which is depressed during the in-stroke of the pump piston, to discharge -from the cylinder the milk previously drawn tliereinto upon the out-strol e of said piston, thus per' mitting the apparatus to be' usedin connecf tion with any paill or other receptacle of ordinary construction without the necessity of providing a special air-tight covei'` for the same, the valve being forced against said cylinders-nd the air exhausted upon the succeeding,` outward -movementv of 'the pump piston. i

The invention further resides in the Specie form of teat. cup lmade use of, and still further resides in Athe employment of va.'

series of low-pressure pumpswhose pistons are connected to .a single reciprocating rod 'operated in any preferred manner, injury to lany one .oit the pumps thus affecting-iii no the remaining pumps` or necessitating the stopping ofthe entire way the operation o apparatus.

."Theseand various other features which constitute the subject matter of this case will be readily understood from va consideration i of the following detailed description, the

preferred embodiment of the invention being illustrated in the accompanying drawings, In

.which 'corresponding parts are designated by thev same reference numerals' in the several views."

O f the saiddrawings #Figur-e 1. isa frag.- mentalvi'cal section tn'lnm thi-quali si barn;

Specication o! Letters Patent. Application le January '13,A 1908. Seriizl No. 41608a resented Dec. e2, 190e.

illustrating the position of the apparatus in the stalls therein, and the connection of the main operating rod with the same. Fig. Q is `an enlarged detail'vieW-of 'the valve cylinder and its attendant which the cylinder is disposed being shown arts, the receptacle in in section. Fig. 3 .is a top plan of Fig.`2.

an enlarged vertical section through the cylinder, showing the sleeve and the valve rod in place therein, the latter beine in: raised position. Fi 5 is a horizontal section on the line 5--5 o Fig. 4. Fig. G is a4 view similar to Fig.` 4 showingthe valve rod in its lowered position; Fig. 7 is an enlarged perspective View of the claw. Fig. 8 is a similar View partly in section, of one of the teat cups. I

Referring more particularly to the drawings, 1 and 2 designate the fixedand movable vertical beams at the front end of the stalls 3 'withinthe interior of the barn, and 4 the horizontal beam which rests upon the top ofthe first-mentioned beams and has mountedv thereon' a series of pump cylinders 5, the number ofilpumps corresponda to the number of stal s. a horizontal rodV 6 which extends across the entire line of' stalls and has imparted thereto `by an `preferred mechanism (not shown)` the lower 'end of the cylinder being open.

Each valve cylinder has disposed therewithiii` a sleeve '13, heldin place fiictioiially oi' otherwise by its outwardly-bent 'upper end 14, lthe lower end of the'sleeve carrying-:1 strap 15, provided with `a eential opening which aliiies withan opening forinedfaxially lin the closed c linder end. Through said y VVopenin `stemo the valveand has its upper end pi'oljeeting into the nipple '10, at which point, it

exten s arod 1,6 which forms the is provided with a ead 1T, which normally retsu'pon the closed end of the cylinder. Th threaded lower end of' said rod extends below the cylinder ndmries a Hexible .disk

-Movable along tie beam 4 is 18, which lser-.vesas- .the valve roper and. is

4 supported upon al nut 19 turne l upon the-rodend. 1` Eaclv'in nipple h -a horizontally-disposed-annlilar channel -formed in its inner4 wall intermediate the ends thereof, as shown in Figs. 4 and 6. i.

Adjacent its upper end, each yvalve cylinder is provided with a secondv nipple 2l,

which projects laterally therefrom,'to which nipple one end of a hose section 22 is attached, the other end thereof being fitted upon the stem of a claw-#shaped member 23 having four laterally-projecting fingers or .nipples 24 formed thereon, upon each of which fingers is fitted one end of a short hosesection 25 whose other 'end is attached Fi 5 and being first doubled and'tlien slipped over the larger end of 'the `metal sleeve, which end is to a teat cup.. y This element, as shown in 8, comprises a conical metalsleeve 26 a rubber sleeve 2T, the`rubber sleeve thus partiallyclosed by the doubled 'edge ofthe rubber sleeve.. Tlie'smaller end of the metal sleeve is then inserted in the hosesectioii 25. Wliein therefore, the teat cups are passed over the teats of the cow andY the pumps arein operation, it will be apparent that upon "each out-,stroke of tlie` pump pistons, the valve Vrods v will be raised by thesiiction so created, drawing the disks 18 tightly against the loweredges 'of the 'cylindeislsaidj rods moving in the opposite direction duriiigfthe in-stroke ofthe ist'ons It will be understood, however, tiat by reason of the fact tliat the diameter of each pistonl head 1T is virtually 'tliegsaine as the inner dianieter'of'the nipple 10, in which it 'slides, no vacuum will be created in the cyliiider, and, -in consequence, no milk drawn.

the use of a. special cover therefor, asthe` cylinder itself is rendered air-tight by means` of its flexible valve and may therefore, be employed with any ordinary receptacle, be-v ing supported iii any manner upon the cover thereof, or otherwise, as preferred. It will be further obvious that the more or less impure air forced out of the pump cylinders diiriiigthe inward movement of the pistons is prevented from entering the valve cylinv ders, by reason of the tight fit of the rod heads 17 within the nipples, tliiis rendering the4 machine 'highly sanitary by avoiding any exposure of the milk to such impure air,

` as will be understood. It will also be obvions that 'the injury to any pump or tothe apparatus connected therewith in no way 'one end below the lower edge thereof; a

affects the operation of tile remaining pumps las the same are entirely independent of each bination of an air-pump-; a seriesl of test cups; a cylinder connected at its upper end vwith the pump and having an open lower end; flexible connections "between the cylgl. In a :cow-milking,apparatus, the com'Y 79 inder and the teat-cups; a movable rod dis 75 posed within the cylinder'and projectinq at isk carried by said rod and movable'therewith into and ,out of contact withhlthe lower edge of the cylinder, to form an air-tightbottom for the latter., the movement of said rod 'being controlled by the movement of the pump piston, and means for effecting com- "munication' between the'air-pump and the cylinder at a predetermined -point iii the g5 movement of said rod, to create a vacuum in said cylinder, and for cutting off communiv cation atother times. 'A

2. In a cow-milking apparatus, the combination of an air-pump; :i seriesof teatcups;, ,a cylinder provided at its upper end with a nipple' and having anfopen lower end; a flexible connection between the a'irpump and said nipple; a'separable liexible connection between the cylinder and the tent-cups; a movable rod disposed within the cylinder and projecting at one end below the lower edge thereof and at its other 'end into the nipple; a disk carried'by said rod and movable therewith into and out o-f con- 100 tact with the lower edges of the cylinder,to form an air-tight bottom for the latter, the movement of said rod being controlled 'by the movement vof the pump piston; and.

means for effecting communicationbetween .105

the air-pump and the cylinder at a predetermined point iii the movement of said ro'd, yto create a vacuum in said cylinder, andjfor cutting otl' communication at other times.

3. In a cowfmilking apparatus, thecombination of an air-pump; a 4series of teat cups; a cylinder provided at its upper' end' with a nipple having an annular channel formed in the inner wall thereof; a flexible .connection between the air-pump and said nipple;a separable fiexible connection between the cylinder and the tent-cups; a. movable rod disposed within the cylinder -and projecting at one end below the lower edge thereof and at the other eind into the nipple; a disk secured to the lower end of said rod forming the bottom of the cylinder, the movement of said rod being controlled' by the movement of Ythe pump piston; and a ahead secured to the upper end of said rod and adapted, upon reaching said channel,l to

open communication between the air-pump and the cylinder, for e vacuinr- 'ithin the latter.

4. In a cow-milkingA ajiipariitus, the cornend; flexible connections between` the cyl inder land .the ytelit-,cupa s. sleeve disposed within the cylinder in spaced relation ,to the disk secured to Athe lower end of said `rod I `innerwall thereof; 'a rod movable within Said sleeve-and projecting'below the lower edge of the cylinder; `a -strap carried by said sleeve and provided withan e o through which said rod slides; anda exible movement of the A In testimony w ereof,V we afiix our signaning and movable therewith into and out .of ,con-

'tact with the lower edge of the cylinder, to fbrm un air-tight bottom for the latter,I the '15 movement of said rod being controlled by the ump piston.

tures, in presence of two witnesses.

ARTHUR V. HINMAN. RALPH LHINMAN.

'Witnessesz i LEILA THoMPsoN,' L. W. McCLosxEY. 

